What's the difference?
The numbers correspond to the amount of denier (the density of the material used to achieve compression) in each pair of tights. For example, a Venere 140 will feature more compression than a Venere 30.
Vanity 30, Vanity 70 Sheer, Vanity 70 Opaque
A line of refined tights with low-rise waist top that lets you keep perfectly in line with fashion without having to forego the preventive action of graduated compression. Fashion and well-being are united in those tights that offer unequalled comfort. With antistress sole to give comfort and well-being to the foot. Available in various compression classes and fashionable colors.